mas.s60
problem set #2

problem 0:  Read, "how to bias an op-amp".

http://ocw.mit.edu/courses/media-arts-and-sciences/mas-836-sensor-technologies-for-interactive-environments-spring-2011/readings/MITMAS_836S11_read02_bias.pdf

problem 1:  design (do not build) an amplifier with a passband of 20Hz to 20kHz, 
a gain of 20, and biased to midrail.  draw up the schematic and label all the parts.
  Use a 200k resistor as your feedback resistor.

problem 2:  you will recieve a quad op-amp for your kit (tlv2374).  use this part to
 build a relaxation oscillator at a rate of approximately 10Hz.  place an LED at the
 output so the frequency is visible.

problem 3: download the arduino IDE, and install it on your computer.

http://arduino.cc/en/Guide/HomePage

make sure the IDE can locate your arduino.  load the blink testcode:
File -> Examples -> Basics -> Blink

make sure the onboard LED blinks.  if you can't get this working in an hour, don't
spend any more time on it than that, we will go over it in lecture.